Help on my math homework asap please no dumb answers 50 pt

The ratio of two numbers is 5 to 4. the sum of the numbers is 99. what number is the greater of the two numbers?

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3